499725420 has 48 divisors (see below), whose sum is σ = 1422179808. Its totient is φ = 131074560.

The previous prime is 499725407. The next prime is 499725431. The reversal of 499725420 is 24527994.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64609 + ... + 71928.

It is an arithmetic number, because the mean of its divisors is an integer number (29628746).

Almost surely, 2^499725420 is an apocalyptic number.

It is an amenable number.

499725420 is an abundant number, since it is smaller than the sum of its proper divisors (922454388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499725420 is a wasteful number, since it uses less digits than its factorization.

499725420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136610 (or 136608 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 499725420 is about 22354.5391363812. The cubic root of 499725420 is about 793.5552098533. Note that the first 3 decimals are identical.

The spelling of 499725420 in words is "four hundred ninety-nine million, seven hundred twenty-five thousand, four hundred twenty".